Expansion-bolt



G. E. OSGOOD.

EXPANSION BOLT. APPLICATION FILED AUG-Z, 1919.

1,359,333 Patented Nov. 23,1920.

Gill? ertEOwoa,

. T all whom it mag concern umran sra'r a s PATENT QFFICE.

GILBERT E. oseoon, or PHILADELPHIA, PENNSYLVANIA, ASSIGNOR or VIOLA J.Go'sNnLL, or PHILADELPHIA, PENNsYLvANIA.

ONE-HALF To EXPANSION-BOLT.

Specification of Letters Fat'ent.

Patei'lted N ov. 23, 1920.

AppIication filed August 2, 1919'. Serial No. 314,836.

Be it known that I, GILBERT. E- Osooon, a Citizen of theUnited States,residing atPhiladelphia, in the county of Philadelphia and State ofPennsylvania, have invented certaln new and useful Improvements inExpansion Bolts, of which the following isaspecification.

Expansion bolts are often used for thepurpose of anchoring or securingarticles to stone walls or the like and, when so used, the expansionbolts are expanded within holes in the walls by the turning of headedscrews which are usually a part 'of the expansion bolts.

Prior to my present invention it was practically impossible afterinserting the expansion bolt in the hole of a wall to prevent the boltfrom moving outward in the direction of the length of the hole prior tothe time in which the bolt expanded into engagement with the sides ofthe hole. For this latter reason it could never be positively determinedjust where the bolt would be located in the hole after it had beenexpanded.

One object of my present invention is to provide means on expansionboltswhich will ing had to the accompanying drawing in which Figure l is afront elevation showing my invention as forming a part of a well knowntype of expansion bolt, 7

Fig. 2 is a perspective view of the part of the expansion bolt shown inFig. 1 having my invention thereon,

Fig. 3 is an elevation showing how my invention is adapted to positionan expansion bolt within a hole in a wall prior to the expanding action;the wall being shown in section, and

Fig. 4 is a view of similar nature to Fig. 3

showing the bolt expanded into engagement with the sides of the hole;the 'e'xpansi'ble' portions of the bolt occupying the same 'd'istancefrom the outer end of the hole as the distance occupied by said parts inFig. 3

tions 6 and .7. A tapered sleeve- 8 and a tapered nut 9' are positionedbetween the p0Ill101lS"6 and 7 at the ends thereof; said portions beingnormally held together by split rings 10 and 11-. Myinvention consistsin providing. the portion 6 with a tongues12; said tonguebeingpreferably cast integral with said portion 6 and extendingforwardly in the direction of its length in a manner illustrated in Fig.1; This tongue 12 is notched throughout its length as shown at 13 sothat the tongue can be easily fractured or broken off at any desireddistance. from the portion 6 according to the distance in which it isdesired to lock the expansion bolt within a hole in a wall or the like.For example,

sold with extremely long tongues and the workman when using theexpansion boltscan' the expansion bolts can be manufactured'and i breakthe tongue 12 so as to permit the de-.

sired length of tongue to remain on the bolt in order to space the boltinwardly from the outer end of the hole. In'the use of my in vention,the outer end 141 of the tongue 12 can abut any article, such forexample as theangle 15, which is to be secured to the wall 16. Theexpansion bolt can be placed within the hole 17 after the headed screw18 is inserted through the angle 15 or other article and engages the nut9 after having passed through the sleeve 8 and portions 6 and 7 asclearly shown in Fig. 3. By turning the screw 18 any tendency from theexpansion bolt 5 to movetoward the angle 15 willbe prevented by theengagement of the end 14 of the tongue 12 with the angle 15. The turningaction of the screw 18 is therefore immediately directed to theexpansion of the portions 6 and 7 so that after first positioning theexpansion bolt and cuttingthe tongue at the proper length, the expansionbolt will be compelled to expand in the desired position in which it isinitially'spaced from the outer end of the hole 17. This is clearlyillustrated in Fig. 4.

It will thus be noted that the tongue 12 is a spacer which spaces thebolt the proper distance inwardly from the outer end of the hole 17.

By making the tongue 12 integral with a part of the expansion boltproper it can be readily transported and is a great conven-- ience sinceit forms a part of the bolt and is always present when needed. Furthermore, by notching the tongue 12 it is a very easy matter to breakthe tongue at different positions within its length since a mere tap ofthe tongue by a hammer will suflice to provide a clean break of thetongue transversely. For example, Figs. 3 and 4 show the tongue havingbeen broken from the length illustrated in Fig. 1.

In the form of expansion bolt illustrated it will be noted that thesleeve 8 has no operative function and as illustrated merely serves tonormally keep the parts 6 and 7 in parallel relation to permit theinsertion of the expansion bolt into the hole in the wall.

While I have described my invention as taking a particular form, it willbe understood that the various parts of my invention may be changedwithout departing from the spirit thereof, and hence Ido not limitmyself to the precise construction set forth, but consider that I am atliberty to make such changes and alterations as fairly come withinlocated at relatively short distances apart;

substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

v GILBERT E. OSGOOD. 1

Witnesses:

ANNA B NTON, CHAs. E. Forms.

